Whole House 100 Micron Spin Down Sediment Filter - Reusable First

In this review of the WSP-100SL spin down sediment filter the bottom line is simple: it is a practical, low-maintenance first stage filter for homes that need reliable sediment protection before finer filtration. The reviewer found it best suited for properties with well water or visible rust and sand, where capturing large particles early reduces wear on downstream systems. Easy to inspect thanks to a clear housing and straightforward to flush, this filter combines a reusable 100 micron element with Siliphos media to help reduce scale and corrosion.

Key Features

• 100 Micron Rating: Catches larger sediment, rust and sand to protect finer whole house filters and extend their life.
• Reusable Spin Down Design: The flushable cartridge lets you clear accumulated sediment quickly without replacing the element, lowering ongoing costs.
• Siliphos Media Included: Helps inhibit scale and corrosion to extend the life of plumbing fixtures and reduce mineral buildup.
• Dual Thread Connections: 1 in MNPT and 3/4 in FNPT threads provide flexible installation options for typical residential plumbing runs.
• See-Through Housing: Visual monitoring of collected sediment makes it easy to know when to flush or replace the filter element.

Who It's For

The WSP-100SL is aimed at homeowners with well water or older supply lines where visible sediment, rust flakes or sand are a recurring issue; it is a sensible first stage ahead of finer whole house systems. Plumbers and DIY installers who want a simple, reusable spin down unit that reduces maintenance on downstream cartridges will also appreciate it.

It is less suitable for users seeking fine particulate removal, as the 100 micron rating is intentionally coarse; any application requiring very fine filtration, chemical removal, or softening as a standalone solution should look to additional filtration or dedicated softeners.

Pros & Cons

Pros

• Durable, clear housing for easy visual checks and straightforward flushing of trapped sediment.
• Reusable element reduces replacement frequency and helps create a staged filtration setup.
• Includes Siliphos media that can help reduce scale and slow corrosion in plumbing fixtures.

Cons

• Some users report occasional leakage, so fittings and seals should be checked at installation and periodically.
• Not designed to remove fine particulates or contaminants; intended only as a coarse prefilter.

Specifications

Micron Rating	100 Micron
Connections	1 in MNPT and 3/4 in FNPT
Included Media	Siliphos (scale and corrosion reduction)
Operating Temperature	40 - 100F
Operating Pressure	20 - 100 psi
Use	Indoor, whole house spin down sediment filter

Our Verdict

The WSP-100SL is a practical, cost-effective prefilter for homes dealing with visible sediment, rust or sand. Its reusable spin down design and clear housing make maintenance simple, while the Siliphos media offers added protection against scale and corrosion. Installers should inspect seals to avoid the occasional leak, but for protecting downstream filters and fixtures this unit delivers strong value.

Frequently Asked Questions

How often should the filter element be replaced?
It is recommended to replace the filter every 3-6 months to prevent scale buildup, though flushing frequency depends on sediment load.

Can this unit be used outdoors?
This model is rated for indoor use; exposure to freezing temperatures or direct outdoor conditions is not advised.

Will this remove dissolved minerals?
No, the 100 micron element removes large particles; the Siliphos helps reduce scale formation but does not remove dissolved minerals.